Problem 3 (8 points). The pH of an aqueous solution of formic acid (HCOOH) is 2.771....
Problem 5 (8 points). The percent ionization for 1.0x10-ⓇM of a week monoprotic acid is 70% in the reaction HA(aq) + H200 = A (aq) + H20*(aq), Kg - ? Calculate K, for the acid and enter it in the box provided with correct units and sig. figs.: Answer: The acid ionization . K : K constant is Problem 7 (12 points). What is the aqueous gram-solubility (in ) of Ca(OH)2: Ca(OH)2(8) = Ca?*(04) + 2OH(aq), K - 8.0-10-6 What...
Problem 4 (8 points). What is the pH of a 0.890 M NH (aq) solution at room temperature? The base ionization constant of ammonia is Ko = 1.78 10. Round off your answer to 2 decimal places and enter your answer in the box provided with correct units and sig. figs.: The pH of Answer: . He 0.890 M ammonia is): pH =
Enter your answer in the provided box. A solution of formic acid (HCOOH) has a pH of 2.39. How many grams of formic acid are there in 100.0 mL of solution? g/100.0 mL
Calculate the pH of a 0.0167 M aqueous solution of formic acid (HCOOH, K, = 1.8x10-4) and the equilibrium concentrations of the weak acid and its conjugate base. pH [HCOOH)equilibrium [HCOO equilibrium
Question 4 2 pts If 11 drops of a formic acid (HCOOH) solution are titrated with 10 drops of a 0.12 M NaOH solution, what is the percent ionization of the formic acid solution? (Ka for formic acid 1.78 x 104) 4.0% 1.3% 1.9% @ 2.5% Question 5 2 pts What is the pH of an acetic acid solution if 25 drops are titrated with 44 drops of a 0.45 M KOH solution? (K, for acetic acid 1.8 x 105)...
69. A solution of formic acid (HCOOH, K, = 1.8 X 10^4) has a pH of 2.70. Calculate the initial concentration of formic acid in this solution.
Calculate the pH of a 0.065 M formic acid (HCOOH) solution. Formic acid is a weak acid with Ka = 1.8 × 10–4 at 25°C. 2.48 is WRONG answer!!!!!! Write your answer to two decimal places. Calculate the pH of a 0.065 M formic acid (HCOOH) solution. Formic acid is a weak acid with 1.8x 10at 25°C. pH 2.48
0. A solution of formic acid (HCOOH, Ka 1.8 x 10) has a pH of 2.70. Calculate initial concentration of formic acid in this solution.
What is the percent ionization of a 0.205 M aqueous solution of formic acid? Ka (HCOOH) = 1.7x10-4
What is the percent ionization of a 0.213 M aqueous solution of formic acid? Ka (HCOOH) = 1.7x10-4